playlist: added feature to find track by number

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@4585 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 10 insertions, 1 deletions

diff --git a/src/qmmpui/normalcontainer.cpp b/src/qmmpui/normalcontainer.cpp
index 665f19e91..0bcba32e5 100644
--- a/src/qmmpui/normalcontainer.cpp
+++ b/src/qmmpui/normalcontainer.cpp
@@ -43,7 +43,7 @@ void NormalContainer::insertTrack(int index, PlayListTrack *track)
         m_items.append(track);
 }
 
-QList<PlayListGroup *> NormalContainer::groups()
+QList<PlayListGroup *> NormalContainer::groups() const
 {
     return QList<PlayListGroup *>();
 }
@@ -131,6 +131,15 @@ int NormalContainer::numberOfTrack(int index) const
     return index;
 }
 
+PlayListTrack *NormalContainer::findTrack(int number) const
+{
+    if(number >= count() || number < 0)
+    {
+        return 0;
+    }
+    return dynamic_cast<PlayListTrack *> (m_items.at(number));
+}
+
 void NormalContainer::removeTrack(int index)
 {
     PlayListTrack *t = track(index);